8. HYMENOPTERA. 

 6. Vespidae 



by 



P. CAMERON. 



The wasps are well represented in the collection made by Prof. SJOSTEDT in Masai- 

 Land (42 sp., 35 n. sp., 302 specimens). The predominant genus appears to be Belono- 

 gasfer which, although not numerous in species, is certainly abundant enough in spe- 

 cimens. It is a typical african genus, but a species is found in Western and Southern 

 India. Equally numerous in specimens is the wide-ranging genus Polistes as represented 

 by the common and widely distributed P. marginalis. 



Polistes marginalis FAB. 



Vespn marginalis FAB., Syst. Ent. 367, 24. - Polistes marginalis FAB. Syst. 

 Piez., 272, 17, SAUSSURE, Vespides, II, 62, PI. VI, f. 2; SMITH, Cat. Hym. Ins. V, 25; 

 GRIBODO, Rasseg. d. Imen. race, nel Mozamb. d. Cav. Fornasini, 1894, 18; Ann. Mus. 

 Civ. Geneva, XVI, 238; 1(2), 286; MAGRETTI, /. c. 1(2), 607; /. c. XIX (2), 36; GER- 

 STACKER, Hym. v. d. Deckens Reise, 325; STADELMANN, Die Hym. Ost-Afrikas, 34; RING- 

 HAM, Ann. and Mag. Nat. Hist. XI, 48. Polistes africana PAL. BEAUV. Ins. Afr. et 

 Amor. (1821) 207, Hym. PI. VIII, f. 4. - Polistes stigma SAUSS. Vespides, II, 64, 21, 

 PI. VI, f. 3. 



Kiliinaniljaro: Kibonoto, 1300 1900 m. ; cultivated zone April to September; 

 Mi'fn low lands, Ngare na nyuki, December. - Very common and variable. Few of 

 the specimens are so brightly coloured as the specimen figured by SAUSSURE (1. c., PL 

 VI, f. 2), most of them having the abdomen much darker coloured, as is also the tho- 

 rax. The var. stigma (having the radial cellule clouded) also occurs. 



Polistes Suiithii SAUSS. 



Polistes SmitJiii SAUSSURE, Vespides, II, 60, PI. VII, f. 3; GERSTACKER, Peter's 

 Reise n. Mozamb., Zool. V, 470; GRIBODO, Ann. Mus. Civ. Geneva, XXI, 287; BINGHAM, 



.^/.ixli ills Kiliiiiiiinljiiro-Mi'rii Expedition- >s . 22 



